Leon Marchand's Fear and the Unanswered Question of Japanese Swimming

At the 2026 Asian Games on Japanese soil, Leon Marchand did not swim. He sat in the stands, eyes fixed on the water, and when Shin Ohashi touched the wall in his race, Marchand leaned forward slightly, then sat back up very quickly.

It is a small movement that anyone who has spent years beside a pool deck recognises. People only lean forward in two situations: when what they are watching is better than they expected, or when it is closer than they wanted. Marchand fell into the second category.

A few hours later, speaking to reporters, he said: "I am afraid. Really afraid." A 24-year-old with four individual Olympic gold medals and the world record in the 400m individual medley, telling journalists he is scared of a group of teenagers.

The quote travelled faster than any result in the pool. And as usual, it was read the easiest way possible: the giant trembling before a new golden generation from Japan. The truth sits somewhere harder.

A continental meet, a four-year cycle

The 2026 Asian Games is not the Olympics, nor the World Championships. But placed inside the cycle building toward LA 2028, its role becomes clear: it is the host nation's selection stage, where a federation re-measures its entire system after years of reform at university and club level.

Japanese swimming has a tradition in two event groups: men's breaststroke and men's individual medley. That is not accidental. These are events that demand slowly accumulated technique, dependent on the quality of grassroots coaching rather than on one freak individual. A good system produces several strong breaststrokers at once, not just one.

The three names that entered Marchand's radar reflect exactly that logic: Tomoyuki Matsushita, 21; Yumeki Kojima, 17; and Shin Ohashi, 17. All three won individual events at these Games.

As for Marchand, he is the benchmark for the entire men's side of the sport. Four individual Olympic golds. The world record in the medley. A training base in the United States under Bob Bowman, the man who built Michael Phelps. In other words, the person saying "I am afraid" is the person standing at the summit.

That is the first notable point: the warning is coming from above, not from below.

Reading it again in numbers, and a note on sourcing

In my notebook, every number has to pass three sources before it is written down. And here there is a problem that must be raised before anything else.

The initial data I have in hand labels these events as butterfly. But 58.64 seconds for the 100m and 2 minutes 06.59 seconds for the 200m do not match elite men's butterfly — they match men's breaststroke almost perfectly. The Olympic record of 2:05.85 that Marchand holds also belongs to the men's 200m breaststroke, not butterfly. I am treating the event labels as pending verification and analysing them as men's breaststroke and individual medley, where the numbers sit correctly. This is not an administrative detail. An analysis built on the wrong event label will lead readers to the wrong conclusion about the same swimmer.

Here is the picture of the gaps, measured in seconds — the only unit that means anything in swimming:

In the men's 400m individual medley, Marchand holds the world record at 4:02.50. Kojima, aged 17, swam 4:07.02, a world junior record. The gap: 4.52 seconds.

In the men's 200m breaststroke, Qin Haiyang holds the world record at 2:05.48. Ohashi swam 2:06.59, 1.11 seconds slower.

Also in the men's 200m breaststroke, Marchand's Olympic record is 2:05.85. Ohashi is just 0.74 seconds behind.

In the men's 100m breaststroke, Adam Peaty's world record is 56.88. Ohashi swam 58.64, 1.76 seconds behind.

In the men's 200m individual medley, Ryan Lochte's world record is 1:54.00. Matsushita swam 1:55.30, 1.30 seconds behind.

How you read these numbers matters more than the numbers themselves. 4.52 seconds over 400m is a different universe — at this level, that gap is roughly half a pool length. 1.30 seconds in the 200m medley is the gap for a medal, not for a final. But 0.74 seconds at the age of 17, in a breaststroke event, is the number that makes you stop.

At 17, most male swimmers are still three to five seconds away from the 200m breaststroke world record. Ohashi is under one. That is why Marchand leaned forward in the stands.

But this is where analysis has to stay sober. The data I have carries no splits — no per-50m times. Without splits, you cannot know whether a 4:07.02 swim is a well-paced effort or one that dies over the final 100m. There is also no stroke rate, no turn time, no underwater distance off the start. Those four data points are what actually determine whether a swim can transfer to senior level.

I once wrote a five-part series called "45.94" for an athletics channel after the night Karsten Warholm broke the world record in the men's 400m hurdles at the Tokyo Olympics. The entire series circled a single question: how do you hold 13 strides between hurdles across 400 metres. I had to work with a sports physicist to explain that arithmetic. The number 45.94 seconds only means something once you know the rhythm that produced it. The same applies to Kojima. 4:07.02 is a headline. The rhythm inside it is the answer.

And within the same picture there is a name that is not new: Matsushita. He has twice won silver in the 400m individual medley — at Paris 2026 and at the 2026 World Championships. He is the only one of the three who has proved himself on the global senior stage. After the home Games, he said plainly that he was not satisfied losing to a younger rival, and set his target on beating Marchand in Los Angeles.

Three swimmers, three different levels of maturity: one with a world championship medal, two with junior records.

Marchand's fear and the easy misreading

Marchand said he was afraid. I do not measure an athlete's fear by their words, I measure it by what they do next. In this case, his action was to fly back to Japan to sit and watch a continental meet he was not competing in. That is the behaviour of someone scouting, not someone worrying idly.

But one thing should be said plainly: part of that praise is media diplomacy. A star athlete saying nice things about the host nation always plays well with the crowd, and Marchand understands his own image value very well. He also mentioned Ohashi's coach — a small detail showing he had studied the team structure, not just the results.

What is more worth discussing is where the media is misreading. The pressure being placed on Kojima and Ohashi is far larger than the foundation of their results.

Junior records are the cheapest currency in swimming. They are awarded to a very narrow group, over a very short window, and they vanish exactly when the body changes. For male swimmers, 17 is the most fragile stage: rapid growth in height shifts the pivot point of the breaststroke pull, the strength-to-bodyweight ratio changes, and shoulder training volume rises with distance. There are swimmers who go 2:06 at 17 and never swim faster again.

The second major risk is the rulebook. Breaststroke carries the densest technical fault zone of the four strokes: the angle of the kick, the position of the legs during the kick, the simultaneous-touch rule at the wall. For young swimmers, every increase in speed is an increase in how close technique sits to the boundary.

Then comes the question of systems. France has one Marchand — a single point of light in the men's medley picture, built inside a high-performance environment. Japan has three swimmers at three levels of maturity, plus an extended run of junior records. If China's Qin Haiyang and Dong Zhihao keep closing, the men's breaststroke becomes a three-nation battleground within a few years.

The media fever will pass. But the 0.74-second gap will still be there, waiting to be re-measured.

Takeaway

Late at night in Nagoya, I replayed the footage of Ohashi touching the wall. A 200m race contains dozens of details worth recording, if you are calm enough to see them — and patient enough not to conclude too early.

What I will be tracking over the next 24 months is not whether Japan produces another Marchand. The more valuable question is: which system produces the fourth and fifth swimmer once Kojima and Ohashi pass the age of 20. At LA 2028, the 0.74-second gap will be measured again. And this time, nobody will be counting it in junior records.